<template>
  <Dialog :title="dialogTitle" v-model="dialogVisible">
    <el-form
      ref="formRef"
      :model="formData"
      :rules="formRules"
      label-width="100px"
      v-loading="formLoading"
    >
      <el-form-item label="课程标题" prop="title">
        <el-input v-model="formData.title" placeholder="请输入课程标题" />
      </el-form-item>
      <el-form-item label="课程描述" prop="description">
        <el-input v-model="formData.description" placeholder="请输入课程描述" />
      </el-form-item>
      <el-form-item label="课程开始时间" prop="startTime">
        <el-date-picker
          v-model="formData.startTime"
          type="date"
          value-format="x"
          placeholder="选择课程开始时间"
        />
      </el-form-item>
      <el-form-item label="课程结束时间" prop="endTime">
        <el-date-picker
          v-model="formData.endTime"
          type="date"
          value-format="x"
          placeholder="选择课程结束时间"
        />
      </el-form-item>
      <el-form-item label="上课人数" prop="number">
        <el-input v-model="formData.number" placeholder="请输入上课人数" />
      </el-form-item>
      <el-form-item label="已预约人数" prop="availableNumber">
        <el-input v-model="formData.availableNumber" placeholder="请输入已预约人数" />
      </el-form-item>
      <el-form-item label="上课地点" prop="place">
        <el-input v-model="formData.place" placeholder="请输入上课地点" />
      </el-form-item>
      <el-form-item label="教练编号" prop="instructorId">
        <el-input v-model="formData.instructorId" placeholder="请输入教练编号" />
      </el-form-item>
      <el-form-item label="教练名字" prop="instructorName">
        <el-input v-model="formData.instructorName" placeholder="请输入教练名字" />
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>
</template>
<script setup lang="ts">
import {CourseInfoApi, CourseInfoVO} from '@/api/booking/courseinfo'

/** 课程信息 表单 */
defineOptions({ name: 'CourseInfoForm' })

const { t } = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const dialogTitle = ref('') // 弹窗的标题
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formType = ref('') // 表单的类型：create - 新增；update - 修改
const formData = ref({
  title: undefined,
  description: undefined,
  startTime: undefined,
  endTime: undefined,
  number: undefined,
  availableNumber: undefined,
  place: undefined,
  instructorId: undefined,
  instructorName: undefined
})
const formRules = reactive({
  title: [{ required: true, message: '课程标题不能为空', trigger: 'blur' }],
  description: [{ required: true, message: '课程描述不能为空', trigger: 'blur' }],
  startTime: [{ required: true, message: '课程开始时间不能为空', trigger: 'blur' }],
  endTime: [{ required: true, message: '课程结束时间不能为空', trigger: 'blur' }],
  number: [{ required: true, message: '上课人数不能为空', trigger: 'blur' }],
  availableNumber: [{ required: true, message: '已预约人数不能为空', trigger: 'blur' }],
  place: [{ required: true, message: '上课地点不能为空', trigger: 'blur' }],
  instructorId: [{ required: true, message: '教练编号不能为空', trigger: 'blur' }],
  instructorName: [{ required: true, message: '教练名字不能为空', trigger: 'blur' }]
})
const formRef = ref() // 表单 Ref

/** 打开弹窗 */
const open = async (type: string, id?: number) => {
  dialogVisible.value = true
  dialogTitle.value = t('action.' + type)
  formType.value = type
  resetForm()
  // 修改时，设置数据
  if (id) {
    formLoading.value = true
    try {
      formData.value = await CourseInfoApi.getCourseInfo(id)
    } finally {
      formLoading.value = false
    }
  }
}
defineExpose({ open }) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  // 校验表单
  await formRef.value.validate()
  // 提交请求
  formLoading.value = true
  try {
    const data = formData.value as unknown as CourseInfoVO
    if (formType.value === 'create') {
      await CourseInfoApi.createCourseInfo(data)
      message.success(t('common.createSuccess'))
    } else {
      await CourseInfoApi.updateCourseInfo(data)
      message.success(t('common.updateSuccess'))
    }
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 重置表单 */
const resetForm = () => {
  formData.value = {
    title: undefined,
    description: undefined,
    startTime: undefined,
    endTime: undefined,
    number: undefined,
    availableNumber: undefined,
    place: undefined,
    instructorId: undefined,
    instructorName: undefined
  }
  formRef.value?.resetFields()
}
</script>